This, she says, is thanks to the semi-controversial detox she just finished.

“Right now, I’m on a metabolic detox,” she told People, “I’m trying to reset my body before I get into the craziness of all this traveling and running around.”

Hailey took on the diet, which is meant to target bloating, aches, fatigue and headaches, for 10 days. The diet is all about eating organic fruits, vegetables, proteins and fibers, whilst eliminating gluten, dairy, stimulants, alcohol and tabacco. On top of that, various nutrients and supplements, like epigallocatechin gallate, glucosinolates, resveratrol, isoflavones and anthocyanidins,are added to support the detoxification process.

“It’s like a cleanse that you have to do with like protein powder and all this different stuff and you have to eat a certain type of way,” she said.

Detoxing, including metabolic detoxing, has come under scrutiny lately from medical and scientific professionals, who have condemned the practice for interferring with the body's natural self maintainance system.

"If you experience fatigue, pallor, unexplained weight gain or loss, changes in bowel function, or breathing difficulties that persist for days or weeks, visit your doctor instead of a detox spa," reads a study conducted by the University of Harvard.

On top of her detox, Hailey revealed she's also catching plenty of Zs for good measure.

“Sleep is such a big one because I think when you’re traveling so much and you’re running around, you don’t realize how off your body gets,” she said.